- 摘 要
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(北京市建筑設(shè)計研究院 北京 100045)
［提要］ 現(xiàn)場測試和模擬試驗表明，壓型鋼板作為組合樓板澆注混凝土的底模，在施工荷載撤走后，壓型鋼板的變形出現(xiàn)回彈，實測撓度與樓板自重作用下的計算撓度基本吻合，小于按現(xiàn)行標準計算的結(jié)果。因此，驗算組合樓板施工階段的撓度時，可不考慮施工荷載的影響。
［關(guān)鍵詞］ 組合樓板 壓型鋼板 現(xiàn)場實測 模擬試驗 變形回彈施工荷載
Discuss on Loading Condition in Deflection Calculation of Composite Slab with Metal Deck at the Construction Stage/Hou Guangyu(Beijing Institute of Architectural Design,Beijing 100045,China)
Abstract:In order to verify the loading condition in the deflection calculation of composite slab with metal deck during construction,the site test and a simulation experiment were carried out.Both the measured metal\|deck deflections of the site test and constructional simulation experiment of a full scale continuous composite slab at the construction stage show that the construction live load should not be included in the deflection calculation,as the deck is designed to be in elastic range, so the deflection of the metal deck should rebound after removal of construction live load,and the measured deflections are extremely close to those which are calculated by the weight of wet concrete and metal deck.
Keywords:composite slab; metal deck; site test; simulation experiment; rebound of deflection; construction live load
